Procaster refuses to be uninstalled, and disrupts my other programs.

[JasuNuki]

I've been deleting programs from my computer to make some space, Procaster included. I would've installed Procaster again when i've made enough space, but i can't even get it out in the first place without either the setup window freezing or my whole computer freezing. When i manage to exit the window and try to un/install another program, i get an error message that tells me that it cannot be done until Procaster is finished un/installing, even when i've canceled it. I'm starting to think that i'll have to take drastic measures to get this problem fixed, so i'm hoping i can get some help before i do so.

Can someone please help me?